I also believe that solar power is the best answer we have at the moment. In the UK, solar panels can be fitted to your house without the need for planning permission. The tech is advanced enough now that the average household will collect enough energy to run all of its power needs and send ~10% of it's energy back to the grid. And that's with the UK being overcast almost 60% of the year! Now imagine all houses having solar panels with constantly improving tech; rechargable batteries for everything (including cars)... It's no stretch of the imagination to consider 'big industry' as a customer of the domestic energy production, basically flipping the current consumer model on its head.
Sum ergo sum